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RSV Census Regional Trends						Print
													Updated February 15, 2024
																	Related Pages
										« Back to Respiratory Syncytial Virus (RSV) Surveillance
Participating laboratories report weekly to CDC the total number of RSV tests performed that week, and the number of those tests that were positive. Because reporting delays may be expected for some laboratories, data shown for the most recent weeks, in particular the most recent two weeks, may be less complete than others. The trend graphs below display by region the weekly average percent of diagnostic tests positive for RSV among all the diagnostic tests performed to detect RSV, as reported by participating laboratories.
In the United States, annual community outbreaks of RSV infections typically occur during late fall, winter, and early spring. There may be variation in the timing of outbreaks between regions, and between communities in the same region.
Census Region Image Map, Census Region Selector
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About Census Regions and Divisions [1 MB, 2 pages]On This Page
			Region 1: NortheastRegion 2: MidwestRegion 3: SouthRegion 4: WestFloridaRegion 1: NortheastPercent Positive
SVG: Northeast United States percent positive RSV tests, by week
Table: Northeast United States percent positive RSV tests, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Detections
SVG: Northeast United States RSV detections, by week
Table: Northeast United States RSV detections, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Region 2: MidwestPercent Positive
SVG: Midwest United States percent positive RSV tests, by week.
Table: Midwest United States percent positive RSV tests, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Detections
SVG: Midwest United States RSV detections, by week
Table: Midwest United States RSV detections, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Region 3: SouthPercent Positive
SVG: South United States percent positive RSV tests, by week.
Table: South United States percent positive RSV tests, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Detections
SVG: South United States RSV detections, by week
Table: South United States RSV detections, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Region 4: WestPercent Positive
SVG: West United States percent positive RSV tests, by week.
Table: West United States percent positive RSV tests, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Detections
SVG: West United States RSV detections, by week
Table: West United States RSV detections, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Florida StatePercent Positive
SVG: Florida percent positive RSV tests, by week
Table: Florida percent positive RSV tests, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Detections
SVG: Florida RSV detections, by week
Table: Florida RSV detections, by week
**Data for recent weeks may be incomplete due to delays in reporting. These preliminary data are shaded gray and may change as more data become available.**Top of Page
							
					
							Last Reviewed:  February 15, 2024						Source: 	National Center for Immunization and Respiratory Diseases (NCIRD), Coronavirus and Other Respiratory Viruses Division
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